<!DOCTYPE html>
<html lang="zh-cn">
<head>
	<meta charset="UTF-8">
	<title>Document</title>
	<script type="text/javascript" src="js/basic.js"></script>
</head>
<body>
	<div class="layer">
		<div class="title">头部标题</div>
		<div class="body">中间内容</div>
		<div class="footer">
			<button type="button">确定</button><button type="button">取消</button>
		</div>
	</div>
	<button class="btn" type="button">弹出</button>
	<script type="text/javascript" src="js/index.js"></script>
</body>
</html>